--- JSON-XS/XS.xs	2007/06/06 14:52:49	1.35
+++ JSON-XS/XS.xs	2007/06/06 17:27:33	1.36
@@ -508,11 +508,11 @@
       // we assume we can always read an IV as a UV
       if (SvUV (sv) & ~(UV)0x7fff)
         {
-          need (enc, 32);
+          need (enc, 64);
           enc->cur += 
              SvIsUV(sv)
-                ? snprintf (enc->cur, 32, "%"UVuf, (UV)SvUVX (sv))
-                : snprintf (enc->cur, 32, "%"IVdf, (IV)SvIVX (sv));
+                ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv))
+                : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv));
         }
       else
         {